
AMS Sectional Meeting Full Program
Current as of Sunday, May 11, 2008 00:21:06
Program 
Deadlines 
Registration/Housing/Etc. 
Inquiries: meet@ams.org
2008 Spring Western Section Meeting
Claremont, CA, May 34, 2008 (Saturday  Sunday)
Meeting #1039
Associate secretaries: Michel L Lapidus, AMS lapidus@math.ucr.edu, lapidus@mathserv.ucr.edu
Saturday May 3, 2008

Saturday May 3, 2008, 7:30 a.m.4:00 p.m.
Meeting Registration
Lobby, Bauer North

Saturday May 3, 2008, 7:30 a.m.4:00 p.m.
Exhibit and Book Sale
Founders Room, Bauer North

Saturday May 3, 2008, 8:00 a.m.10:40 a.m.
Special Session on C*algebras, subfactors and free probability, I
Room B35, Bauer South Organizers: Huaxin Lin, University of Oregon hlin@uoregon.edu
Feng Xu, University of California Riverside xufeng@math.ucr.edu

Saturday May 3, 2008, 8:00 a.m.10:50 a.m.
Special Session on Recent Developments in Riemannian and Kaehlerian Geometry, I
Room RN 104, Roberts Hall North Organizers: Hao Fang, University of Iowa haofang@math.uiowa.edu
Zhiqin Lu, University of California, Irvine zlu@math.uci.edu
DragosBogdan Suceava, California State University Fullerton bsuceava@fullerton.edu
Mihaela B. Vajiac, Chapman University mbvajiac@chapman.edu

8:00 a.m.
Conformally flat submanifolds in spheres and integrable systems.
Neil M Donaldson*, University of California, Irvine
ChuuLian Terng, University of California, Irvine
(103953131)

8:30 a.m.
The structure of complete manifolds with positive spectrum.
Ovidiu Munteanu*, UC Irvine
(10395332)

9:00 a.m.
Degenerate singularity in three dimensional Ricci flow.
Yu Ding*, California State University, Long Beach
(10395883)

9:30 a.m.
Applications of Complex MongeAmpere Operators in Complex Analysis and PseudoHermitian manifolds.
SongYing Li*, University of California at Irvine
(10395399)

10:00 a.m.
The Symplectic Poincar\'{e} Conjecture.
Scott Jeremy Baldridge*, Louisiana State University
(103957121)

10:30 a.m.
Eigenvalue estimates for minimal surfaces in hyperbolic space.
Alberto Candel*, Department of Mathematics, Cal State Northridge
(103953140)

Saturday May 3, 2008, 8:00 a.m.10:50 a.m.
Special Session on Knot Theory and the Topology of 3manifolds, I
Room B36, Bauer South Organizers: Sam Nelson, Pomona College knots@esotericka.org
David Bachman, Pitzer College david_bachman@pitzer.edu
Erica Flapan, Pomona College eflapan@pomona.edu
Jim Hoste, Pitzer College jhoste@pitzer.edu
Patrick Shanahan, Loyola Marymount University pshanahan@lmu.edu

8:00 a.m.
Boring split links and unknots.
Scott A. Taylor*, University of California, Santa Barbara
(10395730)

8:30 a.m.
Almost Normal Surfaces in Knot Complemets.
Robin T Wilson*, California State Polytechnic University, Pomona
(103957106)

9:00 a.m.
Cincompressible planar surfaces in knot complements.
Maggy Tomova*, Rice University
(10395765)

9:30 a.m.
Triangulations of linkmanifolds.
William H Jaco*, Oklahoma State University
J Hyam Rubinstein, University of Melbourne
(103957133)

10:00 a.m.
The Heegaard structure of Dehn filled manifolds.
Yoav Moriah, Technion, Haifa, Israel
Eric Sedgwick*, DePaul University
(103957132)

10:30 a.m.
Bounding the stable genera of Heegaard splittings from below.
Jesse Johnson*, Yale University
(10395747)

Saturday May 3, 2008, 8:00 a.m.10:45 a.m.
Special Session on Algebraic Combinatorics, I
Room RS 103, Roberts Hall South Organizers: Anne Schilling, University of California Davis anne@math.ucdavis.edu
Michael Zabrocki, York University zabrocki@mathstat.yorku.ca

Saturday May 3, 2008, 8:30 a.m.10:50 a.m.
Special Session on Operators, Functions and Linear Spaces, I
Room B25, Bauer South Organizers: Asuman G. Aksoy, Claremont McKenna College aaksoy@cmc.edu
Stephan R. Garcia, Pomona College Stephan.garcia@pomona.edu
Michael Davlin O'Neill, Claremont McKenna College moneill@cmc.edu
Winston C. Ou, Scripps College Winston.ou@scripps.edu

8:30 a.m.
Goodenough Weights for Convolution Algebras on R+.
Sandy Grabiner*, Pomona College
(10394790)

9:00 a.m.
Operator Topologies and Graph Convergence.
Gerald Beer*, California State University Los Angeles
(10394639)

9:30 a.m.
On the Gr\"unbaum "4/3" conjecture.
Grzegorz C Lewicki*, Department of Mathematics, Jagiellonian University, Krakow, Poland
(103946102)

10:00 a.m.
Uniformly Convex Metric Spaces.
Mohamed A Khamsi*, University of Texas at El Paso
(10394622)

10:30 a.m.
Random Measure Algebras in Hilbert Space.
M. M. Rao*, University of California, Riverside, CA 92521
(10394620)

Saturday May 3, 2008, 8:30 a.m.10:50 a.m.
Special Session on Diophantine Problems and Discrete Geometry, I
Room RN 15 (Lower Level), Roberts Hall North Organizers: Matthias Beck, San Francisco State University beck@math.sfsu.edu
Lenny Fukshansky, Claremont McKenna College lenny@cmc.edu

8:30 a.m.
Linear forms of finite sets of integers and lattice points.
Melvyn B. Nathanson*, CUNY ( Lehman College and the Graduate Center)
(103911108)

9:00 a.m.
Polyhedral reduction domains from perfect forms.
Achill Schuermann*, University of Magdeburg
(10391167)

9:30 a.m.
A Diophantine problem arising from a study in Galois groups.
M Filaseta*, University of South Carolina
S Laishram, University of Waterloo
N Saradha, Tata Institute of Fundamental Research
(103911101)

10:00 a.m.
Exceptional sets for sums of primes and squares of primes.
Angel V Kumchev*, Towson University, MD
Jianya Liu, Shandong University, China
(10391156)

10:30 a.m.
The limiting curve of Jarn\'\i k's polygons.
Greg Martin*, University of British Columbia
(10391107)

Saturday May 3, 2008, 8:30 a.m.10:50 a.m.
Special Session on Hopf Algebras and Quantum Groups, I
Davidson Lecture Hall, Adams Hall Organizers: Gizem Karaali, Pomona College Gizem.Karaali@pomona.edu
M. Susan Montgomery, University of Southern California smontgom@math.usc.edu
Serban Raianu, California State University Dominguez Hills sraianu@csudh.edu

8:30 a.m.
Generalized quantum doubles with projection.
Margaret Beattie*, Mount Allison University
Daniel Bulacu, University of Bucharest
(103916119)

9:00 a.m.
Burnside's Theorem for Finite Quantum Groups.
Jorg Feldvoss*, University of South Alabama
(10391684)

9:30 a.m.
Ideals of the enveloping algebra $U(sl_3)$.
Stefan Catoiu*, DePaul University
(103916134)

10:00 a.m.
Representation theory of liftings of quantum planes.
William Chin*, DePaul University
Leonid Krop, DePaul University
(103916141)

10:30 a.m.
Representations of liftings of quantum linear spaces.
Leonid Krop*, Department of Mathematical Sciences, DePaul University, Chicago, IL
(103916100)

Saturday May 3, 2008, 8:30 a.m.10:50 a.m.
Special Session on Combinatorics of Partially Ordered Sets, I
Room RN 105, Roberts Hall North Organizers: Timothy M. Hsu, San Jose State University hsu@math.sjsu.edu
Mark J. Logan, University of MinnesotaMorris loganm@morris.umn.edu
Shahriar Shahriari, Pomona College sshahriari@pomona.edu

8:30 a.m.
Inversion arrangements and lower intervals in the Bruhat order.
Axel Hultman, KTH, Stockholm
Svante Linusson, KTH, Stockholm
John Shareshian*, Washington University
Jonas Sj\"ostrand, KTH, Stockholm
(103905116)

9:00 a.m.
The Schurpositivity poset.
Peter R. W. McNamara*, Bucknell University
Stephanie van Willigenburg, University of British Columbia
(103905129)

9:30 a.m.
Crossings and Nestings of Two Edges in Set Partitions.
Catherine Yan*, Texas A&M University
Svetlana Poznanovik, Texas A&M University
(10390562)

10:00 a.m.
Forbidden characterization of the fractional weak discrepancy of posets.
Jeong Ok Choi*, University of Illinois at UrbanaChampaign
(10390571)

10:30 a.m.
ErdosKoRado for permutations and set partitions.
Cheng Yeaw Ku*, California Institute of Technology
(10390545)

Saturday May 3, 2008, 8:30 a.m.10:50 a.m.
Special Session on Applications of DelayDifferential Equations to Models of Disease, I
Room B24, Bauer South Chairs: John Milton, Claremont Colleges jmilton@jsd.claremont.edu
Organizers: Ami Radunskaya, Pomona College aer04747@pomona.edu

8:30 a.m.
Opening Remarks: John Milton

9:00 a.m.
Models for SexuallyTransmitted Diseases: From Sir Ronald Ross to Ken Cooke and beyond.
Carlos CastilloChavez*, Arizona State University
(103992175)

9:30 a.m.
A Mathematical Model of Circulating Dendritic Cells in Cancer.
Lisette dePillis, Harvey Mudd College
Angela Gallegos*, Occidental College
(10399282)

10:00 a.m.
Modeling GlucoseInsulin Regulatory System with TwoTime Delays.
Jiaxu Li*, University of Louisville
Yang Kuang, Arizona State University
Clint C. Mason, NIH/NIDDK
(103992138)

10:30 a.m.
Stick balancing at the fingertip: Legends of the fall.
John Milton*, The Claremont Colleges
Elizabeth Balch, Claremont McKenna College
Meredith Strauss, Scripps College
Ferrin Ruiz, Scripps College
(10399264)

Saturday May 3, 2008, 11:00 a.m.11:50 a.m.
Invited Address
Diophantine equations: From Erdos to Wiles and back
Forum, Bauer South
Michael A. Bennett*, University of British Columbia
(10391101)

Saturday May 3, 2008, 2:00 p.m.2:50 p.m.
Invited Address
Affine Schubert news.
Forum, Bauer South
Anne Schilling*, University of California Davis
(10390504)

Saturday May 3, 2008, 3:00 p.m.5:40 p.m.
Special Session on C*algebras, subfactors and free probability, II
Room B35, Bauer South Organizers: Huaxin Lin, University of Oregon hlin@uoregon.edu
Feng Xu, University of California Riverside xufeng@math.ucr.edu

Saturday May 3, 2008, 3:00 p.m.5:20 p.m.
Special Session on Dynamical Systems and Differential Equations, I
Room B34, Bauer South Organizers: Adolfo Rumbos, Pomona College arumbos@pomona.edu
Mario Martelli, Claremont McKenna College Mario.Martelli@ClaremontMcKenna.edu
Alfonso Castro, Harvey Mudd College castro@math.hmc.edu

3:00 p.m.
Pathogen competition and coexistence and the evolution of virulence.
Horst R Thieme*, Arizona State University
(10399235)

3:30 p.m.
Computation of Lyapunov Characteristic Exponents of Low Dimensional Continuous Dynamical Systems.
Hubertus F von Bremen*, California State Polytechnic University, Pomona
(10393769)

4:00 p.m.
On existence of positive solution for a class of 2x2 semipositone systems.
Abdou K. Drame, Las Vegas, Nevada
David G Costa*, University of Nevada Las Vegas
(103934174)

4:30 p.m.
A Model for the Evolution of Competitive Coexistence.
J M Cushing*, Department of Mathematics, University of Arizona
Rosalyn Rael, Interdisciplinary Program in Applied Mathematics, University of Arizona
Thomas L Vincent, Aerospace and Mechanical Engineering, University of Arizona
Robert F Costantino, Ecology and Evolutionary Biology, Unviersity of Arizona
(10399213)

5:00 p.m.
Dynamic Reduction with Applications to Discrete Systems.
Robert J. Sacker*, University of Southern California
(10393763)

Saturday May 3, 2008, 3:00 p.m.5:20 p.m.
Special Session on Operators, Functions and Linear Spaces, II
Room B25, Bauer South Organizers: Asuman G. Aksoy, Claremont McKenna College aaksoy@cmc.edu
Stephan R. Garcia, Pomona College Stephan.garcia@pomona.edu
Michael Davlin O'Neill, Claremont McKenna College moneill@cmc.edu
Winston C. Ou, Scripps College Winston.ou@scripps.edu

3:00 p.m.
Unbounded operators commuting with restricted backward shifts.
Donald E Sarason*, University of California, Berkeley
(10394743)

3:30 p.m.
"Determinant computations for some classes of ToeplitzHankel matrices".
Estelle L Basor*, California Polytechnic State University
(10394749)

4:00 p.m.
Composition operator norm inequalities.
Linda J Patton*, California Polytechnic State University, San Luis Obispo
Christopher Hammond, Connecticut College
(103947159)

4:30 p.m.
Norms of Composition Operators with Rational Symbol and Hypergeometric Series.
Dylan Q. Retsek*, Cal Poly, San Luis Obispo
(103947112)

5:00 p.m.
Integration with respect to a HilbertSchmidt class operator valued measure.
Yuichiro Kakihara*, California State University, San Bernardino
(10392819)

Saturday May 3, 2008, 3:00 p.m.5:50 p.m.
Special Session on Diophantine Problems and Discrete Geometry, II
Room RN 15 (Lower Level), Roberts Hall North Organizers: Matthias Beck, San Francisco State University beck@math.sfsu.edu
Lenny Fukshansky, Claremont McKenna College lenny@cmc.edu

3:00 p.m.
A Banach space determined by the Weil height.
Daniel Allcock, The University of Texas at Austin, Austin, TX
Jeffrey D. Vaaler*, The University of Texas at Austin, Austin, TX
(10391146)

3:30 p.m.
Asymptotic results involving Ostrowski's decomposition of natural numbers.
Edward B. Burger*, Williams College
(10391195)

4:00 p.m.
Convex polygons with fixed diameter and maximal perimeter.
Michael J. Mossinghoff*, Davidson College
(103952117)

4:30 p.m.
An extension to the BrunTitchmarsh theorem.
Stephen Choi*, Department of Mathematics, Simon Fraser University
Kai Man Tsang, The University of Hong Kong
Tsz Ho Chan, University of Memphis
(10391141)

5:00 p.m.
Repulsion of imaginary quadratic numbers of low height.
Christopher D Sinclair*, University of Colorado, Boulder
(10391160)

5:30 p.m.
Lehmer's problem for integer symmetric matrices.
Chris J Smyth*, University of Edinburgh, UK
James F McKee, Royal Holloway, University of London
(10391217)

Saturday May 3, 2008, 3:00 p.m.5:50 p.m.
Special Session on Recent Developments in Riemannian and Kaehlerian Geometry, II
Room RN 104, Roberts Hall North Organizers: Hao Fang, University of Iowa haofang@math.uiowa.edu
Zhiqin Lu, University of California, Irvine zlu@math.uci.edu
DragosBogdan Suceava, California State University Fullerton bsuceava@fullerton.edu
Mihaela B. Vajiac, Chapman University mbvajiac@chapman.edu

3:00 p.m.
Horizontally Homothetic Submersions and Nonnegative Curvature.
Frederick Wilhelm*, Univ. of Calf., Riverside
YeLin Ou, Texas A & M, Commerce Station
(10395321)

3:30 p.m.
Nonlinear Energy Integrals, Entropy Functionals and The Ricci Flow on Noncompact Manifolds.
Rugang Ye*, University of California, Santa Barbara
(103953125)

4:00 p.m.
Some results on the topology of manifolds of Nonnegative Isotropic Curvature.
Helena M. Noronha*, California State University Northridge
(103953149)

4:30 p.m.
Curvatures in RiemannFinsler Geometry.
David Bao*, Department of Mathematics, San Francisco State University
(10395386)

5:00 p.m.
Strong noncollapsing and uniform Sobolev inequalities for Ricci flow with surgeries.
S. Zhang Qi*, Math. Dept. UC Riverside
(10395326)

5:30 p.m.
Eigenvalue Pinching with Lower Curvature Bounds.
Chad Sprouse*, Californa State University, Northridge
(103953153)

Saturday May 3, 2008, 3:00 p.m.5:50 p.m.
Special Session on Hopf Algebras and Quantum Groups, II
Davidson Lecture Hall, Adams Hall Organizers: Gizem Karaali, Pomona College Gizem.Karaali@pomona.edu
M. Susan Montgomery, University of Southern California smontgom@math.usc.edu
Serban Raianu, California State University Dominguez Hills sraianu@csudh.edu

Saturday May 3, 2008, 3:00 p.m.4:50 p.m.
Special Session on Combinatorics of Partially Ordered Sets, II
Room RN 105, Roberts Hall North Organizers: Timothy M. Hsu, San Jose State University hsu@math.sjsu.edu
Mark J. Logan, University of MinnesotaMorris loganm@morris.umn.edu
Shahriar Shahriari, Pomona College sshahriari@pomona.edu

Saturday May 3, 2008, 3:00 p.m.5:50 p.m.
Special Session on Knot Theory and the Topology of 3manifolds, II
Room B36, Bauer South Organizers: Sam Nelson, Pomona College knots@esotericka.org
David Bachman, Pitzer College david_bachman@pitzer.edu
Erica Flapan, Pomona College eflapan@pomona.edu
Jim Hoste, Pitzer College jhoste@pitzer.edu
Patrick Shanahan, Loyola Marymount University pshanahan@lmu.edu

Saturday May 3, 2008, 3:00 p.m.4:50 p.m.
Special Session on Applications of DelayDifferential Equations to Models of Disease, II
Room B24, Bauer South Chairs: John Milton, Claremont Colleges jmilton@jsd.claremont.edu
Organizers: Ami Radunskaya, Pomona College aer04747@pomona.edu

Saturday May 3, 2008, 3:00 p.m.5:45 p.m.
Special Session on Algebraic Combinatorics, II
Room RS 103, Roberts Hall South Organizers: Anne Schilling, University of California Davis anne@math.ucdavis.edu
Michael Zabrocki, York University zabrocki@mathstat.yorku.ca

3:00 p.m.
A RepresentationTheoretic Model for kAtoms.
Mark Haiman*, UC Berkeley
LiChung Chen, UC Berkeley
(103905169)

4:00 p.m.
$k$shape poset and $k$Schur functions.
Thomas Lam*, Harvard University
Luc Lapointe, Universidad de Talca
Jennifer Morse, Drexel University
Mark Shimozono, Virginia Tech
(10390581)

5:00 p.m.
A bijection on core partitions.
Chris Berg, University of California, Davis
Brant Jones*, University of California, Davis
Monica Vazirani, University of California, Davis
(103905103)

Saturday May 3, 2008, 3:00 p.m.5:10 p.m.
Contributed Paper Session
Room RN 103, Roberts Hall North

3:00 p.m.
Dynamic topological logic of the real line.
Maria Nogin*, California State University, Fresno
Aleksey Nogin, HRL Laboratories
(10390308)

3:30 p.m.
Fields, Certificates, and Models.
Cyrus F Nourani*, http://projektakdmkrd.tripod.com
R M Moudi, http://projektakdmkrd.tripod.com
(10391211)

3:45 p.m.
On the number of periodic solutions of polynomial differential equations.
Mohamad A. Alwash*, West Los Angeles College
(10393437)

4:00 p.m.
Arithmetics where almost all numbers are even.
Mark Burgin*, UCLA
(10390325)

4:15 p.m.
Solving Integral Equations When the Kernel is Unknown.
Rod Freed*, University of California, Irvine
(103945115)

4:30 p.m.
Hopf Algebras and Projection Maps in Control Theory.
Eric T Gehrig*, Prescio Consulting, LLC
(103993179)

4:45 p.m.
The Congruent Number Problem.
Susil Kumar Jena*, KIIT University, Bhubaneswar, Orissa, India
(103911168)

5:00 p.m.
Perturbation Solution of the Kuznetsov Equation.
Dmitry A Altshuller*, Crane Aerospace & Electronincs
(103935135)
Sunday May 4, 2008

Sunday May 4, 2008, 8:00 a.m.12:00 p.m.
Meeting Registration
Lobby, Bauer North

Sunday May 4, 2008, 8:00 a.m.12:00 p.m.
Exhibit and Book Sale
Founders Room, Bauer North

Sunday May 4, 2008, 8:00 a.m.10:40 a.m.
Special Session on C*algebras, subfactors and free probability, III
Room B35, Bauer South Organizers: Huaxin Lin, University of Oregon hlin@uoregon.edu
Feng Xu, University of California Riverside xufeng@math.ucr.edu

Sunday May 4, 2008, 8:00 a.m.10:50 a.m.
Special Session on Recent Developments in Riemannian and Kaehlerian Geometry, III
Room RN 104, Roberts Hall North Organizers: Hao Fang, University of Iowa haofang@math.uiowa.edu
Zhiqin Lu, University of California, Irvine zlu@math.uci.edu
DragosBogdan Suceava, California State University Fullerton bsuceava@fullerton.edu
Mihaela B. Vajiac, Chapman University mbvajiac@chapman.edu

Sunday May 4, 2008, 8:00 a.m.10:50 a.m.
Special Session on Hopf Algebras and Quantum Groups, III
Davidson Lecture Hall, Adams Hall Organizers: Gizem Karaali, Pomona College Gizem.Karaali@pomona.edu
M. Susan Montgomery, University of Southern California smontgom@math.usc.edu
Serban Raianu, California State University Dominguez Hills sraianu@csudh.edu

8:00 a.m.
Root system and Weyl grpupoid of Nichols algebras.
HansJ\"urgen Schneider*, Mathematisches Institut, LMU M\"unchen, Germany
Istvan Heckenberger, Mathematisches Institut, LMU M\"unchen, Mathematisches Institut, Universit\"at Leipzig, Germany
(103916127)

8:30 a.m.
Pseudosymmetric braidings and YetterDrinfeld modules.
Florin Panaite, Institute of Mathematics of the Romanian Academy
Mihai D. Staic*, Indiana University, Bloomington
Freddy Van Oystaeyen, University of Antwerp
(10391633)

9:00 a.m.
On finite braid representations.
Imre Tuba*, San Diego State UniversityImperial Valley
(103981176)

9:30 a.m.
The half twist in ribbon categories.
Peter Tingley*, University of California, Berkeley
Snyder Noah, University of California, Berkeley
(103917104)

10:00 a.m.
On deformations of graded Hopf algebras.
Mitja Mastnak*, University of Waterloo
(103917128)

10:30 a.m.
Cohomology of pointed Hopf algebras.
Mitja Mastnak, University of Waterloo
Julia Pevtsova, University of Washington
Peter Schauenburg, Universitaet Muenchen
Sarah Witherspoon*, Texas A&M University
(10391880)

Sunday May 4, 2008, 8:00 a.m.10:50 a.m.
Special Session on Knot Theory and the Topology of 3manifolds, III
Room B36, Bauer South Organizers: Sam Nelson, Pomona College knots@esotericka.org
David Bachman, Pitzer College david_bachman@pitzer.edu
Erica Flapan, Pomona College eflapan@pomona.edu
Jim Hoste, Pitzer College jhoste@pitzer.edu
Patrick Shanahan, Loyola Marymount University pshanahan@lmu.edu

8:00 a.m.
Rational structure on algebraic tangles and closed incompressible surfaces in the complements algebraically alternating knots and links.
Ozawa Makoto*, Komazawa University, Faculty of Arts and Sciences, Department of Natural Sciences
(10395729)

8:30 a.m.
Quasifuchsian Spanning Surfaces in Knot Complements.
Colin C. Adams*, Williams College
(10395757)

9:00 a.m.
The volume and Jones polynomial of hyperbolic links.
David Futer*, Michigan State University
Effie Kalfagianni, Michigan State University
(10395758)

9:30 a.m.
Commensurability classes of (2,3,n) pretzel knot complements.
Melissa L Macasieb, The University of British Columbia
Thomas W Mattman*, California State University, Chico
(10395761)

10:00 a.m.
Commensurability of knot complements.
Genevieve S Walsh*, Tufts University
(10395796)

10:30 a.m.
Special links.
Eric B. Chesebro*, Rice University
Jason Deblois, University of Illinois at Chicago
Henry Wilton, University of Texas at Austin
(10395789)

Sunday May 4, 2008, 8:00 a.m.10:45 a.m.
Special Session on Algebraic Combinatorics, III
Room RS 103, Roberts Hall South Organizers: Anne Schilling, University of California Davis anne@math.ucdavis.edu
Michael Zabrocki, York University zabrocki@mathstat.yorku.ca

8:00 a.m.
New applications of combinatorial Hopf algebras.
JeanChristophe Novelli*, Universite ParisEst MarnelaVallee
(103905155)

9:00 a.m.
Expansions of Symmetric Functions in Commutative Images of Noncommutative Symmetric Functions.
Lenny Tevlin*, Physics Department, Yeshiva University
(103905113)

10:00 a.m.
Rationality, irrationality, and Wilf equivalence in the generalized factor order.
Sergey Kitaev, Institute of Mathematics, Reykjav\'ik University
Jeffrey Liese, University of California, San Diego
Jeffrey B. Remmel*, University of California, San Diego
Bruce E. Sagan, Michigan State University
(103905105)

Sunday May 4, 2008, 8:30 a.m.10:50 a.m.
Special Session on Dynamical Systems and Differential Equations, II
Room B34, Bauer South Organizers: Adolfo Rumbos, Pomona College arumbos@pomona.edu
Mario Martelli, Claremont McKenna College Mario.Martelli@ClaremontMcKenna.edu
Alfonso Castro, Harvey Mudd College castro@math.hmc.edu

8:30 a.m.
Periodic Nonstationary Stokes Flow.
Victor L Shapiro*, University of California,Riverside
(10393515)

9:00 a.m.
Modeling the Evolution of Repetitive Sequence in DNA.
Suzanne S Sindi*, Division of Applied Mathematics, Brown University
(103934130)

9:30 a.m.
Prevalent Behavior of Strongly Order Preserving Semiflows.
Hal L. Smith*, Arizona State University
M. W. Hirsch, University of California , Berkeley
German Enciso, Ohio State University
(10393714)

10:00 a.m.
Perturbation from symmetry for indefinite semilinear elliptic equations.
Hossein T. Tehrani*, UNLV
(10393594)

10:30 a.m.
Stability of periodic orbits in a highdimensional electrical network.
Harish S Bhat*, Claremont McKenna College, Department of Mathematics
(103937170)

Sunday May 4, 2008, 8:30 a.m.10:50 a.m.
Special Session on Operators, Functions and Linear Spaces, III
Room B25, Bauer South Organizers: Asuman G. Aksoy, Claremont McKenna College aaksoy@cmc.edu
Stephan R. Garcia, Pomona College Stephan.garcia@pomona.edu
Michael Davlin O'Neill, Claremont McKenna College moneill@cmc.edu
Winston C. Ou, Scripps College Winston.ou@scripps.edu

Sunday May 4, 2008, 8:30 a.m.10:50 a.m.
Special Session on Diophantine Problems and Discrete Geometry, III
Room RN 15 (Lower Level), Roberts Hall North Organizers: Matthias Beck, San Francisco State University beck@math.sfsu.edu
Lenny Fukshansky, Claremont McKenna College lenny@cmc.edu

Sunday May 4, 2008, 8:30 a.m.10:50 a.m.
Special Session on Combinatorics of Partially Ordered Sets, III
Room RN 105, Roberts Hall North Organizers: Timothy M. Hsu, San Jose State University hsu@math.sjsu.edu
Mark J. Logan, University of MinnesotaMorris loganm@morris.umn.edu
Shahriar Shahriari, Pomona College sshahriari@pomona.edu

8:30 a.m.
On chain partitions for quotients of the Boolean lattice.
Jerrold R. Griggs*, University of South Carolina, Columbia, SC
(103905120)

9:00 a.m.
Nested Chain Decompositions of Normalized Matching Posets of Rank 3.
Jordan O Tirrell*, Lafayette College
Elinor Escamilla, Pomona College
Andreea Nicolae, Pomona College
Paul Salerno, Pomona College
Shahriar Shahriari, Pomona College
(10390587)

9:30 a.m.
Matchwebs.
Rae Fredrich*, University of Minnesota, Morris
Tim Hsu, San Jose State University
Mark J. Logan, University of Minnesota, Morris
Katherine Nolan, San Jose State University
(103905163)

10:00 a.m.
Distributive Lattices of Small Width: A Problem from Richard Stanley's 1986 Text {\sl Enumerative Combinatorics\/}.
Jonathan David Farley*, California Institute of Technology
Ryan Klippenstine, Brandon University
(103906154)

10:30 a.m.
Graph Homomorphisms.
Eric Babson*, CA
(103900160)

Sunday May 4, 2008, 11:00 a.m.11:50 a.m.
Invited Address
Classification of simple amenable $C^*$algebras of stable rank one.
Forum, Bauer South
Huaxin Lin*, University of Oregon
(10394603)

Sunday May 4, 2008, 3:00 p.m.5:40 p.m.
Special Session on C*algebras, subfactors and free probability, IV
Room B35, Bauer South Organizers: Huaxin Lin, University of Oregon hlin@uoregon.edu
Feng Xu, University of California Riverside xufeng@math.ucr.edu

Sunday May 4, 2008, 3:00 p.m.5:20 p.m.
Special Session on Operators, Functions and Linear Spaces, IV
Room B25, Bauer South Organizers: Asuman G. Aksoy, Claremont McKenna College aaksoy@cmc.edu
Stephan R. Garcia, Pomona College Stephan.garcia@pomona.edu
Michael Davlin O'Neill, Claremont McKenna College moneill@cmc.edu
Winston C. Ou, Scripps College Winston.ou@scripps.edu

Sunday May 4, 2008, 3:00 p.m.5:20 p.m.
Special Session on Hopf Algebras and Quantum Groups, IV
Davidson Lecture Hall, Adams Hall Organizers: Gizem Karaali, Pomona College Gizem.Karaali@pomona.edu
M. Susan Montgomery, University of Southern California smontgom@math.usc.edu
Serban Raianu, California State University Dominguez Hills sraianu@csudh.edu

3:00 p.m.
CalogeroMoser spaces, representations of rational Cherednik algebras, and the Shapiro Conjecture.
Iain Gordon, Edinburgh University
Emil Horozov, Sofia University
Milen Yakimov*, University of California, Santa Barbara
(103905172)

3:30 p.m.
The bosonfermion correspondence and onesided quantum groups.
Earl J. Taft*, Rutgers University
(10391636)

4:00 p.m.
Lie bialgebras and Quantum Symmetric Algebras.
Sebastian Zwicknagl*, University of California, Riverside
(10391766)

4:30 p.m.
Hopf algebra structures in nonlinear control systems.
Matthias Kawski*, Arizona State University
(103993177)

5:00 p.m.
Discussion

Sunday May 4, 2008, 3:00 p.m.5:50 p.m.
Special Session on Knot Theory and the Topology of 3manifolds, IV
Room B36, Bauer South Organizers: Sam Nelson, Pomona College knots@esotericka.org
David Bachman, Pitzer College david_bachman@pitzer.edu
Erica Flapan, Pomona College eflapan@pomona.edu
Jim Hoste, Pitzer College jhoste@pitzer.edu
Patrick Shanahan, Loyola Marymount University pshanahan@lmu.edu

3:00 p.m.
Intrinsic linking and knotting are arbitrarily complex.
Erica Flapan, Pomona College
Blake Mellor*, Loyola Marymount University
Ramin Naimi, Occidental College
(10395792)

3:30 p.m.
Milnor invariants for spatial graphs.
Thomas R Fleming*, UC San Diego
(10395750)

4:00 p.m.
Intrinsically linked graphs in ${\mathbb R}P^3$.
Jason Bustamante, Montana Tech of the University of Montana
Joel Foisy*, SUNY Potsdam
Kenji Kozai, Harvey Mudd College
Kevin Matthews, SUNY Potsdam
Trickey Kristen, Clarkson University
(10395724)

4:30 p.m.
Intrinsically $n$linked Spatial Graphs and Minor Minimality.
Danielle O'Donnol*, University of California, Los Angeles
(10395472)

5:00 p.m.
Clasppass moves on spatial handcuff graphs.
Takaaki Hoki, Waseda University
Ryo Nikkuni, Kanazawa University
Kouki Taniyama*, Waseda University
(10395788)

5:30 p.m.
An intrinsic nontriviality of graphs.
Ryo Nikkuni*, Kanazawa University
(10395738)

Sunday May 4, 2008, 3:00 p.m.5:45 p.m.
Special Session on Algebraic Combinatorics, IV
Room RS 103, Roberts Hall South Organizers: Anne Schilling, University of California Davis anne@math.ucdavis.edu
Michael Zabrocki, York University zabrocki@mathstat.yorku.ca

3:00 p.m.
Hecke group algebras.
Nicolas M. Thi\'ery*, Univ ParisSud, Laboratoire de Math\'ematiques d'Orsay, Orsay, F91405; CNRS, Orsay, F91405, FRANCE / UC Davis
Anne Schilling, UC Davis
Florent Hivert, Laboratoire d'Informatique, de Traitement de l'Information et des Syst\`emes, Universit\'e de Rouen, FRANCE
(10390597)

4:00 p.m.
Type $A_n^{(1)}$ crystals and promotion operators.
Jason Bandlow*, University of CaliforniaDavis
(103905167)

5:00 p.m.
Multiple AndrewsGordon Identities associated to root systems.
Hasan Coskun*, Texas A&M UniversityCommerce
(103905114)
Inquiries: meet@ams.org

